Gearing.



G. WESTINGHOUSE.

GEARING. I .APPLIOATION FILED'APR. 29, 1897. RENEWED NOV. 16, 1908.

922,827. Patented May 25, 1909.

a SHEETS-SHEET 1.

- WITNESSES G. WESTINGHOUSE. BEARING Patented May 25; 1909.

a sauna-inn 2.

APPLICATION FILED APR. 29, 1897.. RENEWED NOVVIG. 1908.

fIWITNESSES v @MZZ UNITED STATES PATENT ornron GEORGE WESTINGHOUSE, OFPITTSBURG, PENNSYLVANIA.

GEARING.

Application filed April 29, 1897, Serial No. 634,467. Renewed November16, 1908.

To all whom it may concern:

Be it known that I, GEORGE Wnsrrue- HOUSE, a citizen of the UnitedStates, residing at Pittsburg, in the county of Allegheny and State ofPennsylvania, have invented or discovered a certain new and usefulImprovement in Gearing, of which improvement the following is aspecification.

The object of my invention is to provide improved means for transmittingmotion from one rotating part or member of a ma chine or mechanism toanother; and to this end my invention consists of a novel constructionand combination of friction gearing for efieoting such transmission ofmotion.

In the accompanying drawings: Figure 1 is a central longitudinal sectionillustrating an application of my improvenn-nt; Fig. 2, a view showingthe driving shaft and friction device of Fig. 1, on alarger scale; Fig.3, a section through the casing and shaft at the right of the frictionwheels as shown in Fig. 1

on a slightly larger scale than Fig. 1; Figs. 4 i

and 5, detail views, on a larger scale, showing a modification. of theconstruction shown. in i Figs. 1 and 2, and Fig. 6, a detail view of a lthe same scale as Figs. 3

modification on and 4.

Within the casing, 1, is fitted a tapered ring, 2, which is cut or splitdiagonally so that it may be adjusted by being forced into the taperedbore of the casing. head 3, of the casing, extends a shaft 4, car ryingav disk 5, in which pins 6, 7, and S are tightly fitted, at equaldistances at equal distances from the center of the disk. Frictionwheels rotate on the pins 6, 7, and with and roll on the ring 2. Xcentral shaft, 12, extends into the casing, with itsaxis in line withthe axis of the shaft 4, in position 8, and engage to engage with eachof the wheels 9, 10, and j When the shaft 12 is rota-ted, it impartsrotary motion to the wheels 9, 10, and 11, on. the pins 6, 7, and S, andthe engagement of the wheels 9, 10, and 11, with the ring 2, causes themto roll on the ring, and thus rotate the disk 5 and the shaft 4. Thisgeneral construction of gearing is substantially similar to one of theforms shown and described in my pending application, Serial No. 501,140,filed February 23, 1.894, and I do not, therefore, claim it hereinotherwise than as combined with the improved friction device hereindescribed.

In the above recited pending application Specification of LettersPatent.

Through the apart, and 7 i), l(), and 11-. are mounted to Patented May25, 1909,

Serial No. 462,91

the end of a driving shaft forms the central pinion or driving wheel bywhich the planet wheels of the friction gearing are rotated. In mypresent improvement, the portions 13 gage the wheels, 9, I0, and 11;]are the proper diameter to secure ity ratio between the shaft and thewheels, and, in the drawings, they are shown as having the same diameteras the shaft, but they may have a greater or less diameter. than theshaft, and may be formed either integral with the shaft or as a separatepart, or parts, and secured to the shaft in any suitable manner.

is reduced in diameter and wound with one or more coils of wire, 16,16*; the thickness of the wire being such thatthe outside diameter ofthe coils when wound on the shaft will be substantially equal to thediameter of the port-ions13 and 14 and will there fore engage with therims of the wheels It, to. and 11. Each coil of wire is lixed at 01h:end and free at the other end; the fixed. end 18 being tightly fitted ina hole 1f) drilled in the shaft.

hen the shaft 12'is rotated in the same direction that the coil is woundfrom the fixed end, the friction between the coil and the rims of thewheels .tends to uncoil the wire and enlarge. or expand the diameter ofi the coil, thereby pressing the wiro out away g from the shaft andagainst the l'llilstif' the wheels and increasing the friction and thedriving power which may be transmitted from the shaft to the wheels.

The construction illustrated in Figs. 1 and 2, which has but a singlecoil of wire, may be ieinployed when the rotation of the shaft 12- isalways in the same direction, and it is not desired that it should bereversed.

In Figs. 4, and 6, I havesbown two coils of wire, wound in the samedirection ontho and 14, of the driving shaft, 12, which enthe desiredveloc- Between the portions 13 and 14, the shaft l 16 when the shaft isrotated in the opposite direction. \Yhen both coils of wireare wound inthe same direction on the shaft, as shown in Figs. 4 and 6, either theadjacent or the opposite ends of the wire maybe 1 l r-fixed. If the twocoils of wire are wound in construction shown, as the form of themetallic coil or wrapping may be further varied,

I and, if preferred, a number of super-imposed colls may be employed, ora wrapping 9r" winding of metal having a different. cross sectional formmay be employed; for instance, a sheet or layerof metal may be securedat one edge and wrapped about the shaft or pulley so thatits'other edgeabuts against or overlaps the fixed edge. A pulley or shaft providedwith my improvement may be @employed in connection with one or morefriction pulleys, and its application is, therefore, not limited to theparticular arrangement of wheels shown in the drawing.

The characteristic features of the coil, winding, or wrapping employedin the present case, are these: that the' material of -which it iscomposed shall beelastic'and resilient, and sufhciently rigid topreserve a substantially circular or cylindrical shape,

even though attached to the shaft at but one point in any oneconvolution. -These features being present, the best results will besecured if a slight degree of play, or the capacity of a slight radialmovement, be provided in the application of the coil, winding, or

wrapping, elsewhere than at a point, or poin ts, of attachment, wherebyit may have a slight degree of expansibility or com )ressibility,

pulley, of two metallic coils or wrappings that is, radially from andtowarr the shaft. Further, the best results will ordinarily be securedif the convolutions be sufficient in number, that is, counting from thepoint of attachment, to provide for a slight circumferential motion ofthe coil, winding, or Wrapping, in the direction of its length, as itmay become expanded or be com pressed.

I claim as my invention and desire to secure by Letters Patent: v

1 The combination with a shaft, wheel, or

each fixed at one end to the shaft, wheel, or pulley and wound in such adirection relatively to its fixed end that either coil may operate underthe action of the tangential force as a friction device according to thedirection in which the shaft is rotated, substantially as set forth.

2.- In a mechanism for transm tting motion, a rotatable member, tworesilient friction agents fixed at one end to said memberand so arrangedthat either agent may operate under the agency of a tangential force totransmit power according to the direction in which the shaft is rotated.

ends

. o. in a mechanism for transmitting motion, a stationary casing, adriving shaft and a driven shaft extending into said casing, a pluralityof planetary gears mounted on said, driven shaft, a resilient frictionagent mounted on said'driving shaft-and adapted to drive said lanetarygears during the rotation in one direction of said driving shaft and toautomatically disconnect when said shaft is driven in the oppositedirection.

4.--In a mechanism for transmitting motion, a driving member, a drivenmember, a

tion, a driving member, a driven mem er, a

plurality of planetary gears mounted on said driven member, a stationarycasing inclosing said gears adapted .to cooperate therewith,-a'

- resilient friction agent mounted on said drivi-ng member and adaptedto drive said plane' tary gears during the rotation in one direction ofsaid driving agent and to automatically release said gears when saidshaft is driven in the opposite direction. 2,,

6. In a mechanism for transmitting motion, a driving member, a drivenmember, a resilient friction agent mounted on said driving member, aspeed-changing device between said resilient member "and said drivenmember adapted to cooperate therewith and to transmit motion to saiddriven member through said speed changing device when the driving memberis rotated 1n one d1rect1on and to automatically break the "drivingconnection when said driving member is driven in the opposite direction.

7. In a mechanism for transmitting mo tion, a driving member, a drivenmember, a speed-changing device and a resilient friction agent betweensaid members adapted to drive said driven member during the rotation inone direction of said driving member and to automatically break thedriving connec tion when said driving member is driven in the oppositedirection.

8. In a mechanism for transmitting motion, a driving member, a-drivenmember, a speed-changing device and a resilient friction agent betweensaid members adapted to drive .said driven member during the rotation inone direction of said driving member and to break the driving connectionwhen said driving member is driven in the opposite direction.

9. In a mechanism for transmitting motion, an inclosing casing, adriving shaft exezasev a plurality of gears mounted on said drivenshaft, andtvvo resilient friction agents :[ixed shaft and a resilientfriction agent mounted l at one end of said driving shaft and so aronsaid driving shaft and adapted to drive i ranged that one of said agentswill drive said said gears during the rotation in one direction 5 ofsaid driving shaft and to automatically said driving shaft.

disconnect when said shaft is driven in the I In testimony whereof, Ihave hereunto set opposite direction. my hand. t 10. In a mechanism fortransmitting mo- 1 v v GEO. WESTINGHOUSE. tion, an 'inclosing casing, adrivingshaft exk Witnesses:

a 10 tending into said casing, a drivenshaft, a J SNOWDEN BELL,

plurality of gears mounted upon said driven E. W. NEWELL.

gears regardless of the direction of rotation of .1 5

